Excavating-machine.



PATENTEDDEG. 22, 1903. c. T. DRAKE. EXOAVATING MACHINE.

APPLICATION FILED A1 11. 17, 1903.

no MODEL.

4 SHEETS-SHEET 2.

No. 747,868. I PA-TENTED DEC, 22, 1903.

' G. T. DRAKE.

EXUAVATING MACHINE.

- APPLICATION FILED APR. 17, 1903.

no MODEL. 4 snnmrssnnm a .PATENTED DEG. 22,1903.

C. -'T.j DRAKE. BX OAVATING MACHINE. V urmou'mn FILED APR. 17. 1903.

N0 MODEL.

Patented December 22,1903.

PATENT OFFICE.

CHESTER T. DRAKE, OF CHICAGO, ILLINOIS.

'ExcAvATme- .1

SPECIFICATION forming part of Letters Patent No. '747,868,'datedDecember 1903- Application filed April 17, 1903- Scrial No. 153,082. (Nomodel.)

To all whom it may concern.-

Be it known that I, CHESTER T. DRAKE, a citizen of the United States,residing at Chicago, county of Cook, Stateof Illinois, have invented acertain new and useful Improvement v in Excavating-Machines and Ideclare the a following to be a full, clear, and exact description ofthe invention,such as will enable others skilled in the art to which itpertains to make and use the same,referen ce being had to theaccompanying drawings, which form ,a part 0 this specification.

My invention relates to certain improvements in excavating-machines ofthe same class as that described and shown in my concurrently pendingapplication for excavating-machine, executed of even date herewith andfiled April 17, 1903, Serial No. 153,083;

The present invention relates more particularly to the mechanism forrevolving the cutter-shaft and to the other features hereinafterdescribed and claimed. 1

In the drawings, Figure 1 is a side elevation of my mechanism Fig. 2,a'plan view of.

the same; Fig. 3, an end elevation with the cutter-shaft removed; Fig.l, a plan view of the inner end of the cutter-shaft and its accompanyingmechanism; Fig. 5, a sectional view on the line 5 5 of Fig. 4; Fig. 6,an elevation looking from the right in Fig. l; Figs. 7 and 8,details ofthe brace employed; Fig. 9, an end elevation of the counterweight; Fig.10, a side elevation of the counterweight; Fig. 11, a sectional view onthe line 11 11 of Fig. 9; Fig. 12, a plan view of the counterweight;Fig. 13, a side elevation of cutter, shaft, and conveyor with the latterinverted; Fig. 14, an end sectional view on the line l4. l4 looking fromthe left in Fig. 13; Fig. 15, a side view of slide-frame; Fig. 16, afront elevation showing frame 1; at angle; Fig. 17, a front elevation ofstationary and sliding frames; Fig. 18, a side view of Fig. 17 lookingfrom the right; Fig. 19, a plan view of the apparatus as shown in Fig.16; Fig. 20, a plan view of the apparatus as shown in Fig. 17; Fig.21, asectional view on the line 21 21 of ,Fig.' 2; Fig-22, a plan View of thetruck-frame, and Fig. 23 a side elevation of the truck-frame withpartsin section.

In carrying out the invention I will describe only briefly those partswhich are more elaborately described in my above-mentioned concurrentapplication.

A rep rese nts the framework; B B, the

trucks; C, the rails; D D, the endless-belt carriers; E; thecutter-shaft; F, the cutter; G, the spiral conveyor back of the cutterfor carrying ofi the earth; H, the revolving frame gtowhich the shaftisengaged and by means fof which the end of the shaft carrying the cutteris caused to travel in a circular direction that is, an orbitalrevolution; H, the gear which meshes with the worm on the shaft H H thesprocket-wheel on the end of said shaft H H a sprocket chain connectingthe sprocketwheel H with the sprocketwheel H on the counter-shaft H andJ the motor from which the power is derived.

I will now describe the mechanism for supporting and revolving the shaftE.

K is a suitable standard supported on the frame A and forming thebearings for the various shafts, as shown in Fig. 5. It will be observedthat the shaft E extends on both isides of the standard K and that thedriving- @gears, form more or less of a counterweight for the long endof the shaft.

Supported by this standard, preferably by a roller-bearing m, is anupright bearing M. On the shaft E is the ball E, which is carried in thecircular bearings M M of the upright M. On the inner or rear end of theshaft E is a counterweight E and a beveled gear N. On the end of theshaft is a ring 6, keyed to the shaft. The counterweight E is in theform of a collar which surrounds the ring e.

e is a fitting,(shown in Fig. "9) engaged to ithe counterweight E asshown.

Meshing with'the beveled gear N is a beveled pinion O on thecounter-shaft 0', the latter being supported by the fitting e on thecounterweight E 0n the counter-shaft O is a sprocket-wheel 0 connectedby thethe shaft P, as shown in Fig. 4. On theshaft P is a beveled gearP, which meshes with the beveled gear P on the shaft P This shaft P issupported by the upright M and by the arm 7c of the standard K. On thiscounter-shaft P is another beveled gear P", which meshes with thebeveled pinion P on the shaft P", the latter supported by the arm 7t ofthe standard K and by the loose fitting K on the upper end of the shaftP On the shaft P is the sprocket-wheel P The sprocket wheel P isconnected by the sprocket-chain P with the sprocket-wheel R on the shaftR, the latter supported by suitable standards extending from the frameA. The shaft R is provided with the gear R which meshes with the gear Ron the shaft of the motor J. On the end of the shaft R is a pinion R",which meshes with the gear H on the shaft H The operation is as follows:The revolution of the axle of J is transmitted through the pinion R gearR sprocket-wheel R, sprocket-chain P and sprocket-wheel P to the shaft Pthence through the beveled gears P and P shaft P beveled gears P and Pto the shaft P, thence through the sprocket-wheel O sprocket-chain O andsprocket-wheel O to the shaft 0, thence through the beveled gears O andN to the shaft E, thus revolving the latter. At the same time the pinionR on the shaft R meshes with the gear H on the shaft H and thus throughthe sprocket-wheel H and chain H and sprocket-wheel H the shaft H isrevolved, and thus the frame H revolved. The ball E on the shaft E beingsupported by the circular bearings M M permits the outer or cutter endof the shaft E to be moved in any direction, either horizontally orvertically, or at an angle. This of course will give an oppositemovement to the inner or counterweight end, and consequently to the gearN. Any vertical movement or movement in an up-and-down direction will becompensated for by the gear P simply revolving against the face of thegear P while any horizontal movement or movement in a sidewise directionwill revolve the upright M on its ballbearing m, and the latter willcarry with it the standard M and consequently all the mechanism on theshaft P and all the mechanism supported on the shaft 0. Thus the shaft Ewhile continuously revolving may be tilted in either a horizontal orvertical direction without disturbing the mechanism for revolving it.

Another feature of my present invention is the mounting of the frame Aand the mechanism supported thereby by a bearing S, Fig. 23, on theframe and a socket S on the truck B and a bolt S to hold the partstogether. I also provide on the truck B a strip B having perforations Band also the channel-irons a a, on which the piece A of the frame rests.The piece A is provided with a bolt A which enters the orifices of thestrip B so that when desired the frame A, as well as the cutter-shaft,maybe thrown in a horizontal direction to an angle to the length of theside of the excavation, and thereby enabling the cutting of a greaterdiameter of excavation than as though the adjustment were confined tothe cutter-shaft.

Another feature of my invention is the provision of mechanism forpreventing the revolution of the cylinder T, which surrounds the spiralconveyer G, on the outer end of the cutter-shaft.

U is a frame extending out from the main frame A.

V is a frame, and pivoted therein is an upright rectangular frameconsisting of two upright bars 12, within which the frame T, extendingfrom the cylinder, slides. The frame V is provided with twohorizontallyextending arms 1 which pass through orifices in the frame U.Now, as will be seen, when the cutter-shaft moves vertically the frame Twill slide up and down between the bars 1;, and when the shaft moveshorizontally the frame V will slide horizontally on the arms n. Thus thecylinder T is constantly held from rotation, while at the same time itcan accommodate itself to any of the movements of the shaft E.

In Fig. 13 I have shown a variation in the form of the cutter and itsaccompanying spiral conveyer. W is the conveyer, supported by the armsto on the shaft and revolved by the gears w and 10 connecting it withthe counter-shaft.

I wish it understood that in the present application I have shown anddescribed several features which are not broadly claimed in thisinvention, but which are also shown, described, and claimed moreparticularly in my concurrently pending application, filed April 17,1903, Serial No.'153,083.

What I claim is- 1. In a machine of the class described, the combinationof the cutter-shaft, a horizontally-rotatable standard on which theshaft is mounted with a ball-joint between the shaftand standardsubstantially as described.

2. In a machine of the class described the combination of thecutter-shaft, a horizontally-rotatable standard on which it ismounted,-and from which it extends in both directions, a series of gearscarried by the short end of the shaft for rotating it, another-seriescarried in, the standard and adapted to move when the standard isrotated, the latter gears meshing with the shaft-gears and means forrevolving the standard-gears.

3. In a machine of the class described the combination of thecutter-shaft, a horizontally-rotatable standard on which the shaft ismounted, a gear fixed on the end of the shaft,

' one or more gears carried by the shaft adapted to drive the fixedshaft-gear, a series of gears mounted on the standard and adapted tomove when the standard is rotated and means for revolving thestandard-gears.

4. In a machine of the class described, the

combination of the cutter-shaft mounted on the horizontally-rotatablestandard and capable of vertical tilting on the standard, a gear on theend of the shaft, a pinion also supported by the shaft and meshing withsaid gear, a sprocket-chain connecting said pinion with another pinionmounted on the said pivoted standard and means for revolving the latterpinion.

5. In a machine of the class described the combination of thecutter-shaft mounted on a horizontally-rotatable standard and capable ofvertical tilting on the standard, abeveled gear on the end of the shaft,a countershaft supported by said cutter-shaft carrying a beveled pinionwhich meshes with said beveled gear on the cutter -'shaft, a sprocket-Wheel on the counter-shaft supported by the horizontally-rotatablestandard, a sprocket- Wheel on the latter shaft, a sprocket-chainconnecting said two sprocket-wheels, a beveled gear as P on thelastnamed shaft, a vertical shaft supported by saidhorizontallyrotatable standard, but capable of movement independentthereof, said latter shaft having a beveled gear which meshes with thebeveled gear P, and means for revolving the last-named shaft.

6. In a machine of the class described, the combination of thecutter-shaft, a collar on the end thereof, and a counter-shaft carriedby said collar and extending at right angles to the cutter-shaft.

'7. In a machine of the class described, the combination of thecutter-shaft, a ring on the end thereof, keyed to said shaft, a collarsurrounding said ring, a fitting engaged to said collar and acounter-shaft extending from and supported by said fitting.

8. In a machine of the class described, the combination of the cuttershaft, mounted on a horizontally-rotatable standard and capable ofvertical movement thereon, a countershaft carried by the end of saidcutter-shaft, and another counter-shaft carried by the horizontallyrotatable standard, said two shafts connected together by braces.

9. In a machine of the class described, the

. combination with the cutter-shaft provided withmeans for revolving itand simultaneously moving it in a circular direction, a framework forsupporting said shaft and its accompanying mechanism, said frameworkmounted on pivoted truck at one end and having a sliding engagement withthe truck at the other end. 1

10. In a machine of the class described, the combination of thecutter-shaft provided with a rotary cutter, a spiral conveyer back ofthe cutter, a cylinder surrounding the spiral conveyer, means for movingthe cutter in a circular direction simultaneously with its rotation onits own axis and means for holding the cylinder against rotation.

11. In a machine of the class described, the

combination of the cutter-shaft provided with v a rotary cutter on itsend, means for revolving the cutter on its ownaxis, and means forsimultaneously moving it in a circular direction, a spiral conveyer backof the cutter, a cylinder surrounding said conveyor, and avertically-slotted horizontally-movable frame in which the cylinder isengaged and held against rotation.

12. In a machine of the class described, the combination of a rotarycutter, a spiral conveyer carried by the cutter-shaft and located out ofthe longitudinal plane of the cutter but adj acent thereto to directlyreceive the mate rial loosened by the cutter.

13. In a machine of the class described, a

cutter-shaft mounted on a horizontally-rotatable standard, said shaftextending on both sides of the standard and counterbalanced, a series ofgears carried by the shaft for rotatin g it, a series of gears carriedby the standard and adapted to mesh with the shaft-gear and means forrevolving the standard-gear.

14.. The combination of an operating-shaft mounted on ahorizontally-rotatable standard said shaft extending on both sides ofthe standard and coun terbalanced, a series of gears carried by theshaft for rotating, a series of gears carried by the standard andadapted to mesh with the shaft-gears, and means for revolving thevstand'ardgears.

15. The combination of an operating-shaft, a horizontally-rotatablestandard on which the shaft is mounted, a gear fixed on said shaft, oneor more gears carried by the shaft adapted to drive the fixedshaft-gear, a seriesof gears mounted on the standard and adapt CHESTERT. DRAKE.

Witnesses:

H. S. GAITHER, CLARA O. CUNNINGHAM.

